Li cas xim xim ntawm resistors yog recognised

Resistor - qhov no yog qhov feem ntau caij, kos rau hauv cov hluav taws xob hauv hluav taws xob. Nws tuaj yeem pom txhua qhov txhia chaw: los ntawm lub tshuab ntxhua khaub ncaws yooj yim mus rau lub computer tshiab. Ob hom kev cim yog siv los qhia tias lawv cov khoom: thawj yog xim xim ntawm cov resistors los ntawm tus qauv ntawm kev siv cov xim sib txawv rau cov ntaub ntawv, qhov thib ob yog alphanumeric.

Kos npe kos npe

Nyob rau ntawm rooj plaub uas muaj teeb meem loj thiab tsis muaj peev xwm loj, lawv cov nominal resistances (cov kev pabcuam) muaj cim uas siv cov qauv ntsuas ntawm cov lej ntau, thiab tom ntej - qhov sib txawv ntawm qhov kev thov, piv txwv: 1.5 Ohm 10%, 33 Ohm 20%. Xws li qhov tseem ceeb ntawm qhov xim xim ntawm cov resistors. Encryption ntawm nominal qhov tseem ceeb ntawm cov khoom me me yog muaj tshwj xeeb txheej ntawm alphanumeric cim. Tab sis tib lub sij hawm, txoj cai mnemonic, i.e. cov kob ntawm cov xim, uas cov xim ntawm cov resistors muaj, uas yog siv los daws. Raws li lub cev, lub tsev ntawm kev ua haujlwm Om yog coded nrog tsab ntawv (E), 1000 Ohm - raws li (K), mega - twb (M). Lub peev txheej ntawm cov resistors ntawm 100-910 Ohm yog muab los ntawm cov feem ntawm ib kilo, thiab qhov ntau ntawm 100,000-910000 yog lub mega-ohm. Nyob rau hauv cov ntaub ntawv ntawm lub qhia ntawm nominal tsis kam los ntawm ib tug integer, daim ntawv lub npe yog muab tso rau tom qab cov zauv - ZZE (33 Ohm), 1M (1 MОhm). Ntaubntawv povthawj siv decimal feem me me tshaj kev sib sau txo nws hwj alphabetic tias ua ntej tus xov tooj, e.g., M47 (470 ohms). Thiab thaum muaj ib feem nrog cov zauv feem kaum, tsab ntawv sau ua ib qho tsis tiav tom qab: 1E5 (1.5 ohms), 1M5 (1.5 MOhm). Cov kev txwv tam sim no yog qhov cim tseg ntawm qhov kev tawm tsam: 5%, 10%, 15%. Xim npav ntawm tus tiv tuaj yeem ua ob qho tib si ntawm cov cim.

Xim xim

Nws muaj hauv npav txheej plhaub ntawm cov cuab yeej nrog 3 los sis ntau dua ntawm cov kab sib tw xim concentric. Txhua txoj kev painting muaj ib tug tej yam hais txog zauv tus nqi, raws lub thaj chaw ntawm lub resistor. Feem ntau qhov kawg ntawm tus kab sau qhia qhov nqi ntawm qhov kev cia siab ntawm qhov khoom tsim nyog, thiab cov thawj strips hais txog kev ua haujlwm. Piv txwv, rau txoj kab 4-txoj kab, thawj ob qhov cim qhov loj ntawm lub peev xwm (Ohm), thiab qhov thib peb ua hauj lwm raws li tus zauv rau qhov nqi hais. Xim xim ntawm cov resistors tuaj yeem kho tau los ntawm qhov muab cov khoom kom dav thiab cov rings tom qab qab nws ze rau sab laug tes. Tom qab ntawd koj yuav tsum tau siv cov rooj sib piv uas yuav pab txhawb qhov tseem ceeb ntawm kev sib txawv.

Lwm cov qauv

Xim npas ntawm cov khoom tuaj txawv teb chaws tsis tawm txhua yam thiaj li tsis tiav. Qhov tseeb tias rau cov khoom siv hauv tsev siv nws cov cim, tab sis rau txawv teb chaws - lwm. Ib txhia manufacturers thiab tsis hloov cov qauv los ntawm tsim koj tus kheej xim tswvyim. Qhov txawv txav txawv txav yog siv los qhia qhov txawv ntawm cov khoom uas tsim tawm raws li cov kev cai ntawm MIL, uas txawv ntawm cov cim ntawm cov khoom siv thiab cov hom phiaj hauv tsev, tuaj yeem qhia txog cov khoom ntawm cov hluavtaws ua haujlwm, thiab lwm yam. Piv txwv, lub khawm "PHILIPS" qhia tias qhov value ntawm qhov uas tsis tau txais qhov nws tau txais txhua qhov chaw, i.e. Thawj cov duab hais txog cov lus ohms, thiab lub xeem yog tus zauv. Nyob ntawm qhov qhia tias qhov tseeb ntawm qhov resistor, nws yog kho li 3-4 cim. Cov kev txawv ntawm qhov niaj hnub tuaj yeem dag nyob rau hauv lub semantic load ntawm 7, 8 thiab 9 ntawm tus lej kawg.